Preparation method of concentration floating agent for copper and iron

A copper iron spirit and flotation agent technology, applied in flotation, solid separation and other directions, can solve the problems of serious pollution, high production cost, poor production process conditions, etc., and achieve the goal of reducing production cost, reducing pollution and improving production conditions. Effect

Inactive Publication Date: 2003-07-02
BEIJING GENERAL RES INST OF MINING & METALLURGY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of poor production process conditions, serious pollution and high production cost in the prior art in the preparation process of copp

Method used

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  • Preparation method of concentration floating agent for copper and iron
  • Preparation method of concentration floating agent for copper and iron

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Nitrobenzene reduction was performed in 2000 ml three-stem flasks. Add 800ml of water, 75g of ammonium chloride, and 126ml of nitrobenzene to the three-stem bottle in sequence, stir well and mix well. Zinc powder was added at 15°C. 180 g of zinc powder were added to the mixture over 20 minutes and the temperature was allowed to rise to 65°C. Continue to stir for half an hour after adding the zinc powder. Then vacuum filter the reaction product with a large Buchner funnel, and wash the filtrate twice with 200ml warm water (65° C.), the filtrate contains β-benzene, and the filter cake is mainly zinc oxide.

[0016] Synthesis of copper iron was carried out in 1000 ml three-stem bottles. Put the β-arginine solution in a three-stem bottle, and immerse the three-stem bottle in ice-salt water to cool down. After the temperature in the bottle is cooled to about 10°C, pass ammonia gas into it, and then slowly add 120ml of ethyl nitrite , During this process, continue to maint...

Embodiment 2

[0019] Implementation steps are the same as in Example 1. Among them, 126g of nitrobenzene, 180g of zinc powder, 75g of ammonium chloride, and 800ml of water, the initial reaction temperature for the preparation of β-phenylene is 10°C, and the maximum reaction temperature is 70°C. The initial temperature for synthesizing cupferrin was 2°C, the highest reaction temperature was 10°C, and the reaction time was 90 minutes. The cupferrin aqueous solution was distilled to finally obtain an aqueous solution with a weight of 516 g, and the content of cupferrin was 20.84%.

Embodiment 3

[0021] Implementation steps are the same as in Example 1. Among them, 126g of nitrobenzene, 150g of zinc powder, 75g of ammonium chloride, and 800ml of water, the initial reaction temperature for the preparation of β-phenylene is 15°C, and the maximum reaction temperature is 68°C. The initial temperature for synthesizing cupferrin was 5°C, the highest reaction temperature was 15°C, and the reaction time was 80 minutes. The cupferrin aqueous solution was distilled to finally obtain an aqueous solution with a weight of 498 g, and the content of cupferrin was 19.87%.

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Abstract

A process for preparing the floatation agent "Cupferron" for dressing ore includes such steps as preparing beta-phenyl hydroxylamine solution, cooling to 2-10 deg.C, reacting on ammonia and ethyl nitrite and pressure-reduction distilling for concentrating. Its advantages are high content up to 20%, reduced pollution and low cost.

Description

(1) Technical field [0001] The invention discloses a preparation method of cupferrin, a flotation agent for ore dressing, and relates to a production method of cupferrin, an oxidized ore collector, used in the ore dressing process. (2) Background technology [0002] Copperone, namely N-nitrosophenyl hydroxylamine amine salt, molecular formula C 6 h 5 N(NO)ONH 4 , usually used in the chemical industry, is an analytical reagent, mainly used for the colorimetric determination of aluminum, titanium, zirconium and other metals. In recent years, copper iron spirit has begun to be used in the mineral processing industry as a collector for oxidized ore. At present, the synthesis method of cupferidin reagent is to first reduce nitrobenzene with zinc powder, filter to obtain β-phenylene, then dissolve the obtained β-phenylene in ether (or toluene) solvent, and pass ammonia gas into the solution And add n-butyl nitrite (or ethyl nitrite), after the reaction is completed, filter to ...

Claims

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Application Information

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IPC IPC(8): B03D1/004
Inventor 王中明费九光程新朝富有忠方启学肖勇王庆久
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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